Firefox Extensions & Mods That I Love :)

First of all is AdblockPlus 
 There are many Anti-advertising  extensions out there... but I really love this one
 It just needs a little tweak here or there and it is perfect...
 just disable "allow some non intrusive advertising" and install the second extension:

Second is Element Hiding Helper :)
 this one helps you in hiding undetected ads

Third is Grease Monkey
this great extension helps you do all sorts of useful mods (and fun ones too) to your favorite sites..

And of course the lovely user script Torrentz All In One
this one really revolutionizes the famous torrent site "torrentz.com"
here is its homepage and here is its installation link

and you will have to add these to the script to get it to work:
 
// @include       http://www.torrentz.com/*
// @include       https://www.torrentz.com/*
// @match         http://www.torrentz.com/*
// @match         https://www.torrentz.com/*

// @include       http://torrentz.com/*
// @include       https://torrentz.com/*
// @match         http://torrentz.com/*
// @match         https://torrentz.com/*

and lets not forget the "about:config" mod 
browser.search.openintab
to open searches in new tab instead of overwriting the current tab.